7  Vocabularies

In this section, an overview is provided of the vocabulary mapping step.  

The following source code vocabularies are present in the database: 

Vocabulary	Reference Link	Description	Data Domains
SKS	https://medinfo.dk/sks/		observation, procedure, condition_occurrence
ATC	https://www.whocc.no/atc/structure_and_principles/		drug_exposure
NPU	https://npu-terminology.org/	The source data use NPU codes for biochemical analyses of biological samples (blood, plasma, urin, spinal fluid, etc.). Patient-level NPU data will, in the end, not be available for this pilot project, but we will undertake semantic mapping of the 200 most common NPU codes so these are ready for structural mapping once possible.	measurement
drug_mapping_helper	Overview of drugs with ATC code, dosage, unit, form, drug name(s). Provided by RH4131.	Will be used to create mappings to best level of granularity using the RxNormBuilder scripts (based on OHDSI’s “Boiler”)	drug_exposure
<shak_lookup>	Overview of SHAK codes, departments, locations, address		care_site, location, visit_occurrence